It’s becoming normal in Maine politics: While referendums have gone unimplemented or been changed by lawmakers throughout Maine’s history, they’re now used more often by well-funded groups to enact bolder changes, and some politicians have fought back swiftly against them.

Here’s how the fight to give health coverage to 70,000 Mainers could go.

LePage says he won’t implement the law unless the Legislature funds expansion at his disputed cost estimate without tax hikes or funding raids. The law leaves implementation plan in the hands of the LePage administration. It also leaves funding a source up to the Legislature, but his Wednesday demand would be nearly impossible to meet.

The Legislature’s fiscal office estimates that expansion will cost $54.5 million per year after accounting for $27 million of savings in existing health programs. The federal government would be expected to pay $500 million as its share.

LePage has been saying it’ll cost $100 million per year. That means it’s hard to know what level of funding the governor would even accept in any implementation plan. But such a plan is unlikely to materialize in the divided Legislature. Democrats will push for it, but Republicans are showing little interest.

Former DHHS Commissioner Mary Mayhew, a Republican gubernatorial candidate, told WVOM on Wednesday that the initiative read like “motherhood and apple pie” and didn’t account for higher taxes that may be needed to pay for expansion.

“The referendum didn’t ask the question of how does this compete with other priorities of the state budget,” said House Minority Leader Ken Fredette, R-Newport, who is also running for governor. “The talk needs to center around how do we do this, can we do this and the challenges of it.”

The law gives the LePage administration until May to submit an expansion plan. It could blow the deadline, but that could invite a lawsuit. Under the Maine Constitution, unfunded citizen-initiated laws take effect 45 days after the start of the next legislative session in January.

But after that, the law gives the LePage administration another three months to submit an expansion plan to the federal government. Under that timeline, the plan would be due by May and Medicaid could be expanded by summer’s end.

LePage spokespeople didn’t answer a follow-up question about whether Wednesday’s statement meant that they will refuse to draft a plan. That could invite a legal challenge, but the governor would counter by saying there’s no available funding.

Democrats will fight for the law, but they can’t move it forward alone. It’s an issue that may run into next year’s campaign. LePage’s announcement blunted celebrations from expansion advocates and Democrats were indignant at Republicans’ statements.

Senate Minority Leader Troy Jackson, D-Allagash, said in a statement that his party “will not give an inch in this fight,” which he called “a matter of life and death” for many Mainers.

Legislative Democrats can keep Medicaid expansion on the law books, but if Republicans hold firm against funding it, expansion could be an issue to be settled in the 2018 election.

Next year, LePage is term-limited with a wide-open race to replace him and the Legislature’s margins are razor-thin. Democrats hold a 74-69 edge in the House of Representatives and Republicans hold an 18-17 edge in the Senate.

House Speaker Sara Gideon, D-Freeport, said Wednesday that LePage’s statement showed he is “really out of touch with what’s happening with Mainers.”

She noted that Republicans have argued in the past that voters passed referendums that they didn’t fully understand. But she said that such an argument may not fly with voters on health care in 2018.

“People sort of have let them get away with that because they were issues that were different than this issue,” Gideon said. “This issue is about people’s lives.”